sending money

I would like to ask how can someone send me money? I’m going to the USA, i opened my account in dollars but i really don’t know what means reference’s number, where to write it, because everybody has about the same IBAN but diference reference number.
Thank you for every answer.

Reference number should be put into description/ title/ reference on sender’s bank side.

And how can I send money from my europan account to my US account? I try it, i use my reference number as name of account but money didn’t come after 4 days.

Did you send dollars? Did you make sure you sent it to GB06 LOYD 3080 1211 8564 72 with the BIC LOYDGB2L and included the right reference number?

Also, SWIFT transfers can take a while. When did you send it?